Tariff Uncertainty and Refund Rights Are Quietly Rewriting Global Sales Contracts

For many importers, the biggest tariff risk today is no longer the duty itself.

It is what happens after the duty may no longer have been lawful.

The U.S. Supreme Court’s February 2026 ruling striking down broad IEEPA-based reciprocal tariffs changed more than trade headlines. It placed roughly $175 billion in previously collected duties into potential refund territory, while leaving businesses to navigate a deeply uncertain recovery process that may take years to fully resolve.

That uncertainty is forcing a new kind of legal planning.

Trade lawyers, customs counsel, manufacturers, and global sourcing teams are no longer looking only at future tariff exposure. They are now actively modeling refund ownership, retroactive pricing rights, and how previously paid duties should be allocated if CBP, the Court of International Trade, or Congress ultimately opens a broader refund pathway. Reuters recently reported that investors are already buying tariff refund claims at steep discounts, which shows just how quickly these refund rights are being treated as financial assets rather than mere customs disputes.

This is why the issue has become one of the largest contract-risk questions in global trade.

The operational effect is immediate. Importers into the United States are revisiting landed-cost assumptions that were baked into supply agreements, distributor pricing, and customer pass-through models. A landed-cost formula that once treated tariffs as a fixed cost variable now has to account for the possibility that some portion of those duties may be reversed, re-litigated, replaced under another legal authority, or partially refunded years later.

That changes the economics of the contract itself.

The first pressure point is Incoterms and risk allocation.

Many companies still assume that delivery terms such as DDP, FOB, or CIF resolve the tariff question. They do not. Incoterms govern delivery risk and certain transport obligations, but they rarely answer the far more consequential issue of who owns the economic benefit if duties previously paid are later refunded. The importer of record may receive the administrative refund, while the buyer, distributor, or end customer may argue that the tariff burden had already been commercially passed through to them.

That disconnect is exactly where disputes are beginning.

The same issue is now showing up in change-in-law clauses.

Historically, those provisions were drafted to address new tariffs, regulatory surcharges, or export restrictions. They were rarely written with sufficient sophistication to address the reverse problem: what happens when a tariff is later invalidated, partially refunded, or replaced under a different statute. Without modernized language, parties are left arguing over whether the legal “change” includes the unwind of a tariff, who absorbs the margin correction, and whether pricing should be reopened at all.

This is why price adjustment and true-up mechanisms now deserve much closer attention.

A company may have increased resale pricing, imposed customer surcharges, or negotiated supplier offsets based on duties that were believed to be permanent. If those duties later become refundable, the commercial system needs a clear way to reconcile the economic benefit. Otherwise, the business may recover funds from the government only to face downstream disputes from distributors, customers, or suppliers claiming the money was already built into prior invoices.

That is where refund ownership becomes one of the most important contract clauses in international trade.

Many agreements are still silent on who owns the proceeds of a successful customs protest, litigation refund, or retroactive duty reversal. In today’s environment, that silence is expensive. If the contract does not expressly define whether refunds belong to the importer of record, the economic bearer of the duty, the downstream customer, or a shared-recovery formula, the company may win the customs fight and immediately enter a commercial one.

This is also why supplier burden-sharing provisions are coming back into focus.

Manufacturers and sourcing teams are increasingly renegotiating who absorbs duty increases, who participates in protest rights, and who benefits if duties are later reversed. That is especially important where suppliers adjusted pricing downward to help offset tariff costs during the height of reciprocal duty pressure. If refunds later materialize, the supplier relationship itself may need a retroactive reconciliation mechanism.

The larger business takeaway is that tariff uncertainty is no longer only about the next duty increase.

It is now about how contracts allocate the unwind of duties already paid.

The companies best positioned here are not simply waiting to see what Customs, the courts, or Congress do next. They are using this moment to rebuild tariff escalation clauses, duty reallocation language, refund ownership rights, customs protest cooperation provisions, and retroactive true-up mechanisms so the commercial contract matches the legal uncertainty now driving global trade.

For importers, manufacturers, and cross-border sales teams, this is the right time to review whether your international sales agreements actually account for refund rights, tariff reversals, and future duty substitution risk. A focused legal review often reveals where landed-cost assumptions, change-in-law clauses, and refund ownership language break down before a successful protest or court recovery turns into an avoidable supplier, customer, or distributor dispute. If your business imports into the United States and has priced around reciprocal tariff exposure, this is the right moment to schedule a strategic trade-contract and refund-rights review before recoverable duties become a preventable commercial fight.